I know the old supra and 3sg MR2 guys used to use the techtom chips for the factory ECU, but that was mainly obd I. I wonder if they would be willing to make a solder chip for our ECU's and hack into the factory tune
www.technosquareinc.com

 

your better off going piggy back or reflash IMO.
You can do a lot more with a piggy back and get better results if properly tuned.

 

umm...no way bro...there is no way in hell that a piggyback ECU that gets corrected by the factory ECU overtime will do better than a programmable chip that acts like the stock ECU cause it doesnt know that it is there...ask any reputable tuner out there and see what they prefer...greddy emanage or an OBDII reflash...I think the answer is real simple here...these arent a one time shot reflash, its a reprogrammable chip than can be changed over and over

 

^Hey simply, idk if you've talked to Charles about it and I know you've got the Unichip but he's got his ultimates set up so that the ecu will never relearn. He told me he's never reset his ecu once while he's had it. I agreee though a reflash is a much better option most of the time.

 

Yea I wish our ECU was as easy to tune as my girls Cobalt SS/SC, they have software the can alter anything in the PCM and make the car run perfect. Stock ECU control is what id like to have..

 

Wait for Rado and World Racing and lets see what those new TRD ECUs have in store for us.

 

Hopefully its what they are saying its gonna be.

 

As always, Hopefully.

 

Yep

 

Problem is no Toyota ecu has been hacked (except that obd I) and well I don't think there ever will be. I think we either need to stick with the piggybacks are start looking into stand alones (probably a Megasquirt or AEM).

 

Lets pray TRD makes the custom ECU's

 

no, I think you guys are misunderstanding...this company doesnt do reflashes...they are solderable chips such as APR chips for VW/Audis, Hondata chips etc

 

Yea, but is there any possible way to do this on a 2azfe ecu?

 

we wont ever know unless someone finds out...hence the thread

 

Im sure companies have looked into this already... there is no way they passed up the idea..

 

see I thought that too, but then I also thought about the fact that the whole cost factor would be a lot greater than using a cheap piggyback, plus install difficulties with the chip soldering and programming...that would hafta be done in house with you sending the ECU out to them (like what JWT does for their ECU's)

 

Actually it could be like Uberdata (http://uberdata.pgmfi.org/) and the Honda community. Buy like 60$ in parts and you can reprogram your own ecu and burn your own chips. I just don't know if many people on here are willing to do this kind of stuff on their own ecu's.

Also in the Mitsubishi (Evo) community they have the ability to reflash their ECU through the OBD-II port. This would be something I would be highly interested in.

 

in all reality anything is possible. it is a matter of how far you are willing to screw up your ecu,and how much money you want to pay. a piggy back is the cheapest and easiest for companies to produce at low cost. and one of the most profitable( most likely)

A friend of mine is an electrical engineer and also has a degree in programming. He has a WRX and he did did some crazy ____ to his stock ECU. he tried to explain it to me once but it was way over my head had somthing to do with algorythms i think. not sure. anyways he said best bet is to literally reprogram the ECU as in write a new program for it or modify the program. OR do a standalone. the soldered in chip he said is also a good idea but you have to be concerned with over heating the ECU because of bad programming or instalation of the chip

 

I think the real problem is that Toyota encrypts its code on their ECU's and that on other platforms (i.e. Subaru, Mitsubishi, and Honda) their code is not encrypted.

 

its all encrypted...just not as heavily